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Yamaha F400A 2022 - Troubleshooting Procedure (Trouble Code Not Detected); Troubleshooting the Power Unit

Yamaha F400A 2022
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4-25
Outboard motor troubleshooting
Troubleshooting procedure (trouble code not detected)
Troubleshooting consists of the following 5 items:
Symptom 1: Specific trouble conditions
Symptom 2: Trouble conditions of an area or individual part
Cause: Trouble causes of symptom 2
Checking steps: Method for checking
See page: Reference page
—: Not applicable
Troubleshooting the power unit
Symptom 1: Engine does not crank.
Symptom 2 Cause Checking steps
See
page
Starter motor does
not operate
Gear shift not in the N po-
sition
Set the gear shift to the N position. 5-22
Blown fuse Check the fuse. 5-10
Engine start switch mal-
function
Check the engine start switch. 5-41
Check the engine start/stop button. 5-41
LPS malfunction Check the LPS.
Short, open, or loose con-
nection in starter motor cir-
cuit
Check the wire harness for continu-
ity.
A-16
Starter motor malfunction
Disassemble and check the starter
motor.
5-46
Y-COP is locked Unlock Y-COP.
Starter motor oper-
ates, but the engine
does not crank
Stuck piston or crankshaft
Disassemble and check the power
unit.
7-77
Stuck drive shaft
Check the drive shaft bushing. 9-29
Disassemble and check the lower
unit.
8-27
8-54

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